On this Valentine’s Day, we’re supposed to celebrate love and life. Instead, Progressive Democrats of America (PDA) is mourning the victims of a gun massacre. One year ago today, 17 students and staff were brutally murdered—and 17 more were injured—at the Marjory Stoneman Douglas High School in Parkland, FL.

It was the worst mass shooting of 2018, just one of six school shootings, and only one of more than 320 mass gun violence attacks in which at least 4 people were shot. This year, we’ve already suffered 37 mass shootings, including one on February 11 in Livingston, TX, that killed four adults and a toddler. Enough is enough!

After the Parkland shooting, courageous students have taken matters into their own hands. They spoke out. They organized March For Our Lives. They lobbied legislators at the state and federal levels. Last summer, March For Our Lives organizers embarked on a nationwide bus tour.

And then something important happened.

For the first time in decades, sensible gun safety legislation became a mainstream campaign issue. Democratic candidates campaigned against rampant gun violence, and Democrats retook the U.S. House of Representatives, flipped 7 governorships, and won seats in legislatures and county boards across the nation.

Now, what will we do with these electoral victories?

Inaction is not an option. Firearms are the weapon used in 73 percent of murders and over 50 percent of suicides nationwide. That’s an epidemic (and surely more qualified to be a national emergency than illegal immigration, currently at a 10-year low). We must ensure that elected officialsenact sensible and sane policies to protect public safety.

Grassroots pressure got Democrats to run and win on the issue of preventing gun violence. Only continued grassroots pressure will make elected officials put actual policies in place that reduce gun violence.